Accession Number:

ADA954263

Title:

Ballistic and Metallurgical Investigation of M1 Helmets Edge-Annealed in a 'Tocco' Induction Heating Unit Prior to Trimming.

Descriptive Note:

Memorandum rept.,

Corporate Author:

WATERTOWN ARSENAL LABS MA

Personal Author(s):

Report Date:

1944-10-16

Pagination or Media Count:

23.0

Abstract:

A metallurgical investigation of the edge annealing of this helmet in a Tocco induction heating unit prior to the trimming operation is feasible both from a procduction viewpoint and for the purpose of the stress relieving the visor, which is a zome very susceptible to age cracking. Ballistical testing of the annealed zone and the transition zone both to possess satisfactory ballistic characteristics.

Subject Categories:

  • Protective Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE